12420132013 has 4 divisors (see below), whose sum is σ = 12420410400. Its totient is φ = 12419853628.

The previous prime is 12420132001. The next prime is 12420132037. The reversal of 12420132013 is 31023102421.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12420132013 - 2⁹ = 12420131501 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12420130013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55495 + ... + 167092.

It is an arithmetic number, because the mean of its divisors is an integer number (3105102600).

Almost surely, 2^12420132013 is an apocalyptic number.

It is an amenable number.

12420132013 is a deficient number, since it is larger than the sum of its proper divisors (278387).

12420132013 is an equidigital number, since it uses as much as digits as its factorization.

12420132013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278386.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 12420132013 its reverse (31023102421), we get a palindrome (43443234434).

The spelling of 12420132013 in words is "twelve billion, four hundred twenty million, one hundred thirty-two thousand, thirteen".